Cultivator.



Patanted Mar. I9, |901.

D. E. BABTGN.

GULTIVATGE.

(Appuwam and-m10, woo.)

(No Model.)

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YH: No-Nms PETER: cu. mcmuno.. wncmnmon, n. c.

@Nimah Strains DELBERT E. BARTON, OF MINNEAPOLIS, MINNESOTA.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No.'670,093, dated March19, 1901.

Application led December l0, 1900. Serial No. 39,321. (No model.)

To @ZZ whom t may concern:

Bc it known that 1, DELBERT E. BARTON, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inOultivators; and I do hereby declare the following to be a full,clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to cultivators and other tillage-machines, and hasfor its especial object to provide certain improvements in the devicesfor suspending' the drag-bars and gangs of shovels or other tillagedevices.

To this end my invention consists of the novel devices and Acombinationsof devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein likenotations refer to like parts throughout both views.

In said drawings, Figure 1 is a vertical longitudinal section showingacultivator equipped with myimprovements,some parts being omitted andothers broken away; and Fig. 2 is a detail in section on the line m2 x2of Fig. 1.

The fixed or main frame 1, the arch 2, the supporting-wheels 3, thedrag-bars 4, coupled to the main frame for vertical and lateral pivotalmotion, the pivoted mast 5, the connecting pipe or bar 6, with its arm 7engaging the claw or hook at the upper end of the mast, the hand-lever8, pivoted to the arch 2 and having an arm 9, connected to the cross-rod10, carried by the brace-rods 11, which connect the same with the fixedframe 1, and the lock-segment 12 for cooperation with the lever 8 areall of the ordinary standard construction and serve the customaryfunctions.

Having regard now to my improvements, I provide a two-armed rocker 13and pivot the same to the fixed frame' 1 in advance of the pivoted mast5. This rocker 13 is connected with the mast 5 by three flexibleconnections marked, respectively, 111, 15, and 16. The upper or topconnection 14 to the mast is shown as in the form of a chain and bailhook and as connecting the upper end portion of the rocker 13 with theupper end portion of the pivoted mast in any desired adjustment,according to the position of the bail-hook thereon. The two bottom orlower end connections 15 and 16 are convergent and connect the oppositeends of the rocker 13 to the lower end portion of the pivoted mast 5,the connection to the mast being made on a common center d. As shown,the connection to the mast 5 is made by means of a double hook 17, whichis pvoted to the mast and the hook ends of which engage with the innerends of t-he convergent connections 15 and 16. The pivoted hook 17 maybe applied to the mast 5 at any one of several different points ofadjustment. One of the two lower or converging connections 15 and. 16must be elastic, and the elastic connection can occupy either position,accoi-ding to whether the top connection 14 takes hold of the upper orthe lower end of the rocker 13. As shown, the top connection 14 from themast 5 takes hold of the upper end of the rocker 13, and hence theelastic memberof the two bottom connections connects the mast with thelower end of the rocker. As shown, the elastic connection 16 is in theform of an open-ended compressed spring, and the connection 15 is in theform of a chain, adapting the same to have any of its links engaged withthe pivoted hook 17, thereby affording a means for adjusting the tensionon the elastic member or spring 16.

the strains which come from the drag-bars or shovelfgangs will beyieldingly taken on the elastic member or spring 16 and in line witht-he axis thereof. When the machine is at work, for example, the partswill be in the position shown in full lines in Fig. 1, and in saidworkin g position the drag-bars or shovelgangs are of course suspendedfrom the pivoted mast 5, and said mastis held by the parts 13 to 17,inclnsive,with freedom to move yieldingly backward Whenever any specialstrain comes onto the shovels. For example, suppose that some of theshovels should run under some fixed obstruction, like a root, stump, orstone, or engage under a piece of tough sod, turf, or hard ground. Thena downpull will be produced on the shovels and rear ends of thedrag-bars under the forward draft from the animals, and the strain willbe taken over the chain 14, the rocker 13, the spring 16, and the hook17 and the strain so taken on the ICO springr 1 6 being applied theretoover the lower end of the rocker 13 will be taken endwise of the spring,on the axial line thereof, just as the balancing strain is taken whenthe parts are in their normal working: positions, as shown in fulllilies in Fig. 1. When the top of the rocker 13 moves backward from thedownpull on the shovels, the chain 15 of course slackens and the spring16 is set under increased tension. When the shovels are disengaged fromwhatever caused the downpull,the spring 16 will automatically restorethe parts to their norrnalor balanced working position. `When the partsare raised into their idle position, as shown in dotted lines in Fig. 1,the distended spring 16 will contract, thereby throwing the upper arm ofthe rocker 13 forward and applying the tension of the spring over thechain 15 and through the hook 17 to the pivoted mast 5, thereby causingthe spring 16 to assist in the lifting action for raising the drag-barsat all points of the motion. If the parts 15 and 16 should be reversedin p0- sition and the top connection 14 from the mast be connected tothe lower end of the rocker 13,1;he general action would be the same inits effect on the drag-bars and shovels; but the rockerl would take thereverse motions in point of time or order, as compared with those abovedescribed, as incidental to the positions occupied by the said parts 14,15, and 16, as shown in the drawings.

By actual usage I have demonstrated the efficiency of the inventionherein disclosed for the purposes had in View.

When the drag-bars are raised into their idle position, as shown indotted lines in Fig. 1, the pivoted mast 5 rests against a suitable stop18, which is shownin Fig. 2. The kicko is not shown.

Vhat I claim, and desire to secure by Letters Patent of the'UnitedStates, is as follows:

1. In a tillage-machine, the combination with a pivoted drag-bar andpivoted mast with a pivoted drag-bar and a pivoted mast from which thedrag-bar is suspended, of a two-armed rocker pivoted to the frame, anupper fiexible connection from the upper end portion of the mast'to oneend of the rocker, two lower end flexible connections extending fromopposite ends of said rocker, and a hook pivoted to the lower endportion of the mast and engaging with the convergent ends of said twolower end connections, one ot' which lower end connections is elasticand takes hold of the rocker 13 at the end opposite to thetopconnection,substantially as described.

3. In a tillage-machine, the combination with the pivoted drag-bar andthe pivoled mast from which the drag-bar is suspended, of the pivotedrocker 13, the top flexible connection 14 extending from the upper endof the rocker 13 to the upperend portion of the mast, the chain 15 andthe spring 16 extend ing from opposite ends of the rocker 13, and thehook 17 pivoted to the mast 5 and engaging the convergent ends of saidparts 15 and 16, substantially as described.

In testimony whereof I ai-x my signature in presence of two witnesses.

DELBERT E. BARTON.

Witnesses:

M. M. McGRoRY, F. D. MERCHANT.

